Killer tends to be reckless and his clothes gets a lot rips and tears because this. Azalea stitches they up for him. She actually teaches him to do this himself.
Killer was in the middle of a match in an fps game. He found Dust's character and was about to get the winning shot when his jacket hit him in the face. There was the sound of gunfire, and as he pulled his jacket down, he sees that Cross had shot him. The timer comes to an end, and with that, Cross won.
"If you want to keep this ratty old jacket, you are going to learn to maintain it! Of the three of you, you are the most reckless with your clothes," Azalea huffed.
"you heard the lady, i'm out," Killer said into the headset.
"yeah, s'all good, getting motion sick," Dust mumbled.
"and here i thought my clothes were ratty looking," Horror laughed. "you really ticked her off this time!"
"you're just feeling sore that i won again," Cross replied smugly. That might be true.
Once he turns the game off, he follows her to a room that has now been labeled as the craft or art room. She had him sit at her sewing table, and she gathered the supplies he would need. Killer knew most of this. After all, he helped make Papyrus' battle body. And he also maintained his younger brother's clothing.
But... he got to sit close to Azalea. She was talking to him and not with that usual annoyed tone. Now and then, she would praise his success. And even better was when she would take his hands to guide them to where they should be.
Was he blushing? Most likely... especially as he glanced up at her, seeing the beauty in her expression as he explained the next step with such care and passion for the subject.
"you're so pretty..." Killer mumbled softly.
"What?" She replied and looked back at him.
"uh," He didn't mean to say that out loud, "you know... sowing pun. heh, you're sow pretty."
She shot him a glare, "relentless flirt. Take your jacket and the thread. Stop turning article of clothing you've worn to me with holes."
He complied... him and his stupid mouth... that was a good moment.